New Details in a Valley Murder Case

December 22, 2008 2:06:52 PM PST

KFSN --

Search warrants detail a disturbing, calculated plan carried out, police say by teenagers. Krista-Rae Pike's body was found earlier this month inside the Madera home she shared with her fiancé and his father.

Her Fiancé's ex-girlfriend Brittany Navarra and her current boyfriend Dustin Gran have been arrested and charged in the murder.

Search warrants filed by Madera Police indicate the murder of Krista-Rae Pike was a cold and calculated crime.

Police say it all began when Thomas Hollier broke up with Brittany Navarra and ended with "Navarra's" confession.

Kim Carlson, Hollier's Sister: "It was just horrible. I can't believe they would do something like that over jealousy it doesn't make any sense to me."

According to the affidavits, just a month before the murder, a friend of Thomas Hollier claimed that Brittany Navarra sent him an angry text message saying that Navarra would kill Krista because she loved Thomas Hollier.

There's also a documented interview with one of Brittany's friends.

A detectives writes the young friend claims Navarra told her that quote Prior to Christmas Dustin Gran asked Brittany what she wanted for Christmas. Brittany told Dustin she wanted Pike killed.

The police investigation also focused on the pair's myspace pages.

In one post, police say Brittany asked Dustin if he would help her hide a body.

Dustin told Brittany that he would help her hide a body if she asked him to.

School officials say Navarra was in class here at Madera High the day of the murder. According to this search warrant, Brittany told police she was sending text-messages to Gran who was with Krista-Rae, telling Gran to kill and rape her. She also claims he then took a picture of the body."

Police list that photo among evidence taken from the homes of Gran and Navarra.

Surveillance video was also taken from these cameras outside the movie theater that Gran's family owns.